Sheet-metal culvert.



J. H. DEAN. SHEET METAL CULVERT. -AP1LI('AITON FILED JAN. 10. 1913.

1,080,329.. Patented Dec. 2, 1913.

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. nected relation,

sides of the upper culvert section and the metal strips 3 above referred to. It is to be noted that these keys neatly fit within the passageways 4 and thus serve to correctly position the abutting longitudinal edges of complementary sections, an'gl furthermore to retain said edges in Susannating relation. The keys are furthermore provided at their free end with fingers 7-7, which, if found necessary, are adapted to be bent over into engagement with theupper edge of the metal strips 3, for the purpose of firmly holding the complementary sections in connected relation. It has been found in certain sizes of culverts that it is not necessary to bend over the fingers 7-7 into engagemenjt with the upper edge of the strips 3 for the purpose of tying or holding complementary sections in con but that the mere insertion of the keys within the passageways is quite sutiicient, and this due to the frictional engagement between said keys and the sides of.

the culvert section and strips.

Many advantages are obtained by a construction of sheet metal culvert along the lines as herein specified, it being noted that all of the various parts of the fastening means for connecting together complementarysections are permanently carried by the sections themselvcs,'which has its obvious advantages.

Having thus described my invention, what I claim and desire to secure by Letters Patcut is 1. A sheet metal culvert comprising complemcntarycorrugated sections having longitudinal abutting edges,a metal strip or bar secured to the convex corrugations of one of said sections thereby forming a space or passageway between each concave corrugation of said section and the metal strip, and fastening means rigidly and pcrmanently secured to the other of said sections and adapted for engagement Within the passageways referred to for holding and retaining the longitudinal meeting edges of said sections in abutting relation and fastening the sections together.

it sheet metal culvert comprising complementary sections having longitudinal abutting edges, a metal strip or bar secured to said section along the longitudinal edge thereof, said strip being so formed as to leave space or passageway at intervals between the culvert and the strip, and fasten ing means rigidly and permanently secured to the other of said sections along the longitudinal edge thereof and adapted for insertion within said nassagewa ys to correctly oeoeee position the longitudinal edges of the coinplementary sections and furthermore to hold said sections in connected relation.

3. A sheet metal culvert comprising complementary corrugated sections having longitudinal abutting edges, a metal strip or bar secured to the convex corrugations of said section' along the longitudinal edge thereof, and a key or clip rigidly and permanently secured to the concave corrugation of the other of said sections and adapted to engage within a passageway formed between a concave corrugation of the first mentioned section and the metal strip secured thereto. 4. A sheet metal culvert comprising coinplemeutary corrugated sections having longitudinal abutting edges, a metal strip or bar secured to the convex corrugations of said section along the longitudinal edge thcreofland a key or clip rigidly and permanently secured to a concave corrugation of the other section, said key or clip being transversely curved to conform to the cnrvature of the concave corrugations of said sections and adapted to engage within a passageway formed between a concave cor-- rugation of the first mentioned section and the metal strip.

5.-A sheet metal culvert having longitudinal abutting edges, a metal strip or bar secured to said culvert along one 0 its lon gitudinal edges, said strip beingso formed as to leave a space or passageway at intervals between the culvert and the strip, and fastening means rigidly and permanently secured to the culvert along another of its Ion itudinal edges and adapted for insertion within said. passageways to correctly position the abutting longitudinal edges and furthermore to hold said edges in connected relation.

6. A sheet metal culvert having longitudinal abutting edges, a metal strip or bar secured to said culvert along one of its longitudinal edges, said strip being so formed as to leave a space or passagewayat intervals between the culvert and the strip, and a key or clip rigidly and permanently secured to the culvert alonganother of its longitudinal edges and adapted for insertion within said passageways to correctly position the abutting longitudinal edges and furthermore to hold said edges in connected relation. 1

In testimony'whereof l have alfixed my signature in presence of two witnesses.

JOHN ll. DEAN.

Witnesses Jim. W. Cooinmri, GIL n. G. S'rnRNs.

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